I need to ask for some help with an expression. I think it’s ‘almost’ where I need it. Just can’t figure out the last piece.

Context:

First, on any given day, telephone numbers call in. User selects a day and QV counts the number of times the telephone called. If it called one time only, it gets a value of 1. If it called >1 times, it gets a value of 0. The sum of this column divided by the total distinct count of telephone numbers provides a First Call Resolution %.

Next, the user can select a trailing date range. In the example below, vdatekey is the user selected date. vTmaxdate is set using a listbox (T1-T30) (T = ‘Trailing # Days’). The variable is set using the Date(vdatekey – GetSelectedCount). The datakey is the call’s workgroup and telephone number. There are 30 expressions in the chart object, T1-T30. Each one with vdatekey – 1, vdatekey -2, etc… It tells me what I need to know using the expression below, but it doesn’t give me a sum (Total Mode > Expression). I need the sum so that I can divide it by the total count of distinct telephone numbers on the date selected by the user.